#1B0C48#1B0C48

#1B0C48 is a very dark, moderate violet. Relative luminance 0.010; OKLCH L 22.4% C 0.103 H 286.1°. Best body text is #FFFFFF at 17.61:1 contrast (WCAG AA passes).

Color values

HEX	#1B0C48
RGB	rgb(27, 12, 72)
HSL	hsl(255, 71%, 16%)
HSV	hsv(255, 83%, 28%)
CMYK	cmyk(62.5%, 83.3%, 0%, 71.8%)
CIE-LAB	lab(8.69, 25.70, -34.48)
CIE-LCH	lch(8.69, 43.00, 306.70°)
OKLab	oklab(22.43% 0.0286 -0.0992)
OKLCH	oklch(22.43% 0.103 286.1)
XYZ	xyz(1.7528, 0.9637, 6.2233)
Luminance	0.0096 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B0C48 #39480C

analogous

#0C1B48 #1B0C48 #390C48

triadic

#1B0C48 #481B0C #0C481B

tetradic

#1B0C48 #480C1B #39480C #0C4839

square

#1B0C48 #480C1B #39480C #0C4839

split-complementary

#1B0C48 #48390C #1B480C

monochromatic

#0A041A #0A041A #1B0C48 #2F157C #421DB1

Accessibility & contrast

On white

17.61

#1B0C48 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#1B0C48 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0C48

17.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B0C48	#FFFFFF	#000000	##FFFFFF
##1B0C48	1.00	17.61	1.19	17.61
#FFFFFF	17.61	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A4A

Deuteranopia (green-blind)

#001747

Tritanopia (blue-blind)

#061D29

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #1b0c48;
/* rgb */ color: rgb(27, 12, 72);
/* oklch */ color: oklch(22.4% 0.103 286.1);

Tailwind

colors: {
  custom: {
    50: '#5e4c7c',
    500: '#1b0c48',
    950: '#000000',
  },
}

SCSS

$custom: #1b0c48;
$custom-light: #5e4c7c;
$custom-dark: #000000;

JSON

{
  "hex": "#1b0c48",
  "rgb": {
    "r": 27,
    "g": 12,
    "b": 72
  },
  "hsl": {
    "h": 255,
    "s": 71.429,
    "l": 16.471
  },
  "oklch": {
    "l": 0.22425,
    "c": 0.10329,
    "h": 286.1
  },
  "luminance": 0.00964
}

Semantic roles & 50–950 ramp

primary

#1B0C48

secondary

#6E842C

accent

#EE3AC1

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#050109

muted

#79777B

Preview Lab

Preview with #1B0C48

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →